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. 2020 Jul 23;10:12311. doi: 10.1038/s41598-020-69382-4

Table 1.

General information and NSP characteristics of public hospital workers.

Total In primary hospitals In secondary hospitals In tertiary hospitals
Questionnaires collected 30,520 14,211 9998 6311
Failed to participate 4839 2198 1603 1038
Valid questionnaires 29,547 13,537 9759 6251
Age 37.4 ± 11.2 38.4 ± 10.1 37.1 ± 11.5 35.7 ± 12.7
Sex
 Male 8795 (29.8%) 3953 (29.2%) 2905 (29.8%) 1937 (31.0%)
 Female 20,752 (70.2%) 9584 (70.8%) 6854 (70.2%) 4314 (69.0%)
Marital status
 Never married 4391 (14.9%) 1972 (14.6%) 1446 (14.8%) 973 (15.6%)
 Married/cohabiting 23,809 (80.6%) 10,962 (81.0%) 7869 (80.6%) 4978 (79.6%)
 Divorced/separated/widowed 1347 (4.6%) 603 (4.5%) 444 (4.5%) 300 (4.8%)
BMI
 < 18.5 (Underweight) 1537 (5.2%) 731 (5.4%) 506 (5.2%) 300 (4.8%)
 18.5–23.9 (Normal weight) 18,607 (63.0%) 8551 (63.2%) 6140 (62.9%) 3916 (62.6%)
 24.0–27.9 (Overweight) 5525 (18.7%) 2506 (18.5%) 1839 (18.8%) 1180 (18.9%)
 ≥ 28.0 (Obesity) 3878 (13.1%) 1749 (12.9%) 1274 (13.1%) 855 (13.7%)
Educational level
 Lower than junior college 16,760 (56.7%) 8142 (60.1%) 5563 (57.0%) 3055 (48.9%)
 Junior college 4906 (16.6%) 2351 (17.4%) 1620 (16.6%) 935 (15.0%)
 Bachelor 4762 (16.1%) 1972 (14.6%) 1580 (16.2%) 1210 (19.4%)
 Master or above 3119 (10.6%) 1072 (7.9%) 996 (10.2%) 1051 (16.8%)
Smoking
 Never smoked 20,730 (70.2%) 9415 (69.6%) 6862 (70.3%) 4453 (71.2%)
 Ex-smoker 2781 (9.4%) 1251 (9.2%) 917 (9.4%) 613 (9.8%)
 Current smoker 6036 (20.4%) 2871 (21.2%) 1980 (20.3%) 1185 (19.0%)
Exercise in leisure time
 Never/almost never 7091 (24.0%) 3172 (23.4%) 2374 (24.3%) 1545 (24.7%)
 Sometimes 14,108 (47.7%) 6512 (48.1%) 4640 (47.5%) 2956 (47.3%)
 Often 8348 (28.3%) 3853 (28.5%) 2745 (28.1%) 1750 (28.0%)
Work hours per week
 < 40 9050 (30.6%) 4567 (33.7%) 2855 (29.3%) 1628 (26.0%)
 40–45 11,814 (40.0%) 5231 (38.6%) 3927 (40.2%) 2656 (42.5%)
 > 45 8683 (29.4%) 3739 (27.6%) 2977 (30.5%) 1967 (31.5%)
NSP lasting for at least
 24 h 20,601 (69.7%, 69.2–70.2%) 7179 (53.0%, 52.2–53.8%) 7551 (77.4%, 76.6–78.2%) 5871 (93.9%, 93.3–94.5%)
 7 days 12,016 (40.7%, 40.1–41.3%) 3169 (23.4%, 22.7–24.1%) 4795 (49.1%, 48.1–50.1%) 4052 (64.8%, 63.6–66.0%)
 3 months 4624 (15.6%, 15.2–16.0%) 1258 (9.3%, 8.8–9.8%) 1652 (16.9%, 16.2–17.6%) 1714 (27.4%, 26.3–28.5%)
Absence due to NSP 3366 (11.4%, 11.0–11.8%) 1054 (7.8%, 7.3–8.3%) 1129 (11.6%, 11.0–12.2%) 1183 (18.9%, 17.9–19.9%)